I am indebted to my colleague Riazat Butt for this idea: We know the National Secular Society is unhappy about the papal visit to the UK, but surely it could have come up with a better t-shirt than this? Cif belief – in homage to the many years of service from The Gallery – wants you to come up with your own design for a papal T-shirt, whatever your feelings about the holy father.

Send them to andrew.brown@guardian.co.uk as a jpeg with a brief caption and we'll put the best ones up on the site. Some of them may even end up on T-shirts, coffee mugs and so on.

UPDATED: It's obvious in retrospect that I should not have opened comments on this. The rules are clear. You have to make a mockup of the design, and send it to me. This was not meant to be a chance to offend gratuitously any Catholic readers we may have, and I apologise to them.